How does the car reflect the temperature of the car engine coolant? It is through the water temperature sensor, which is also called the water temperature sensor plug. So where is the specific location of the car water temperature sensor? The water temperature sensor enables the control unit to identify engine overheating or an unusual rise in temperature. How much does a car water temperature sensor cost?
DS18B20 е често използван цифров температурен сензор. It outputs digital signals, has the characteristics of small size, ниски хардуерни разходи, силна способност против смущения, висока точност, and is widely used.
DS18B20 is a digital temperature sensor that uses a single bus timing to communicate with the host. Only 1 Wire is needed to complete the temperature data reading;
DS18B20 has a built-in 64-bit product serial number for easy identification. Multiple DS18B20 sensors can be connected to 1 Тел, and through 64-bit identity authentication, the temperature information collected from different sensors can be read separately.
Today I will show you how to use the DS18B20 digital temperature sensor with an Arduino so you can measure the temperature of air, liquids such as water, and the ground.
To connect the DS18B20 digital temperature sensor to Arduino, you need to do the following steps:
Hardware connection:
Connect the VCC pin of DS18B20 to the 3.3V power pin of Arduino.
Connect the GND pin of DS18B20 to the ground pin of Arduino.
Connect the data pin of DS18B20 to the GPIO pin of Arduino (например, GPIO4).
Connect a 4.7kΩ pull-up resistor between the data pin and the 3.3V power pin.
В различни индустрии се използват висока точност и прецизна NTC термистори сензори, От медицински до индустриални приложения. Медицинската индустрия разчита на NTC в различни приложения, включително катетри, диализно оборудване, и наблюдение на пациентите. Тази част от медицинския сензор е 1355 Ома при 37 ° C с бета 25/85 на 3976.
Метални термични резистори като никел, copper and platinum resistors have a positive correlation with the change in resistance with temperature. Платината има най-стабилни физични и химични свойства и е най-широко използвана. The temperature measurement range of the commonly used platinum resistor Pt100 is -200～850 ℃. Освен това, the temperature measurement ranges of Pt500, Pt1000, и т.н. последователно се намаляват. Pt1000, temperature measurement range -200～420 ℃. Съгласно международния стандарт IEC751, температурните характеристики на платинения резистор Pt1000 отговарят на следните изисквания:
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